Answers to
frequently asked questions

You have questions regarding your telephone? Here you will find answers. Just select your product category (e.g. ISDN phones) and click on the relevant product.


Please select a product category and / or product.


Why does my display illumination not switch off?

If the handset is in the base station or the charging cradle, the display is dimmed. If this bothers you, you can set the handset to night mode. The display is then completely dark when the handset is in the base station or the charging cradle.

Display Night Mode
Select and press ( = on).
Press and hold (idle status).